Find the following values without a calculator.
Give your answers in this manner. (Eg 10%, 20%, 30%, 40%)
- Express 700 mℓ as a percentage of 5 ℓ.
- Express 6000 mℓ as a percentage of 2 ℓ.
- Express 90 min as a percentage of 3 hours.
- Express 3 min as a percentage of 20 seconds.
(a)
1 ℓ = 1000 mℓ
5 ℓ = 5000 mℓ
7005000 x 100% = 14%
(b)
6000 mℓ = 6 ℓ
62 x 100% = 300%
(c)
1 h = 60 min
3 h = 180 min
90180 x 100% = 50%
(d)
1 min = 60 seconds
3 min = 180 seconds
18020 x 100% = 900%
Answer(s): 14%, 300%, 50%, 900%